Yes. To modify global print settings for forms, choose File menu > Printer Setup > For Printing Invoices. Quicken displays the printer setup dialog for invoices.
To ensure that your company address and the customer addresses show correctly in Intuit's double-window envelopes, fold the form on the line that runs along the top of the Due Date and P.O. Number fields.
To order envelopes from Intuit, choose Tools menu > Quicken Services, and then under Just For Quicken, select Order Checks & Supplies.
If you print an invoice to paper, by default it no longer appears in the Print Invoice dialog. You can display it again so you can reprint it.
You can print envelopes and labels for your forms from the Address Book.